Lamp



FIG. 1 is a side elevational view of a lamp showing my new and ornamental design,

FIG. 2 is an enlarged top plan view thereof,

FIG. 3 is an enlarged bottom plan view thereof,

FIG. 4 is a perspective top view thereof; and,

FIG. 5 is a perspective bottom view thereof. 

The ornamental design for a lamp, as shown. 